Calculating-machine.



PATENTED JUNE 12, 1906.

F. TRINKS. OALGULATING MACHINE.

APPLIUATION FILED FEB. 2. 1905.

5 SHEETSSHEET 1.

w zaudea No. 823,375. PATENTED JUNE 12, 1906. F. TRINKS.

CALCULATING MACHINEx APPLICATION FILED FEB.2, 1905.

5 SHEETS-SHEET 2.

PATENTED JUNE 12, 1906.

F. TRINKS. CALCULATING MACHINE.

APPLIUATION FILED FEB.2, 1905.

5 SHEETS-SHEET 3.

Z /wzz ZZZ 26260" was PATENTED JUNE 12, 1906?.

F. TRINKS.

CALCULATING MACHINE.

APPLIGATION FILED PEB.2,1905.

5 SHEETS-SHEET 4.

II!!! I No.82 3,875. PATENTED JUNE12, 1906. F. THINKS. CALCULATING MACHINE.

APPLICATION FILED 1113.2, 1905.

5 SEEETSSHEET 5.

UNlTED STATES PATENT OFFICE. FRANZ THINKS, OF BRUNSWICK, GERMANY.

CALCULATING-MAVQHINE- Patented June 12, 1906.

A li ati fil d February 2,1905. Serial F0. 243,867.

'fication. 1

This invention relates to calculating-ma chines of that class in which the operation of the registering-wheels is had through the medium of adjustable disks carrying ratchetteeth; and the object of the invention resides .wheels unless t respondin in providin referred to or returning simultaneously the disks to zero position for the next operation of the registering-wheels.

The invention further. resides providing the machine with a locking mechanism to prevent the operation of the registeringe disks have been returned to zero position after the preceding operation of the registering-wheels.

The invention further aims to provide a calculating-machine to attain the foregoing objects which shall be simple in its construction, strong, durable, efficient in its use, and comparativel inexpensive to manufacture.

With the oregomg and other objects in view the invention consists of the novel construction, combination, and arrangement of parts hereinafter more specifically described,

illustrated in the accompanying drawings,-

which form a part of this specification, and particularly pointed out in the claims hereunto appended.

In describing the invention in detail refer- .ence is had to the accompanying drawings, wherein like reference characters denote corparts throughout the several views, an in which Figure 1 is a front view of a calculatingmachine constructed in accordance with this invention with the cover of the casing removed. Fig. 2 is a side view with the corresponding side wall removed. Figs. 2 and 2 are sectional details. Fig. 3 is a view similar to Fig. 2 of a modification. Fig. 4 is a front view of another modified form with the cover removed. Fig. 4 is a detail view of another modification. Fig. 5 is a side view of the apparatus as shown in Fig. 4 with the side wall removed. Figs. 6 and 7 are details of Figs. 4 and 5. Figs. 8 to 12 are further modifications. Fig. 13 is. a sectional side elevation broken away, showing one form of a locking means hereinafter specifically device to prevent the operation of the disks until they are returned to zero position. Figs. 14 to 17 illustrate modifications of locking mechanisms.

Referrin to Figs. 1 and 2 of the drawings, adenotes t e rotatable disks, which are r0- vided with the dis laceable teeth 2, and denotes the adjusta le disks, each having a curved slot and which are termed camdisks. The disks 1; are adapted to displace the teeth 2. The disks 1) are rovided with a handle 0 to enable the said sks b to be adusted. The teeth 2 when adjusted in the proper manner are adapted to engage the toothed wheels, which orrn a part of'the register-wheels c. When the teeth 2 e age the toothed Wheels of the register-whee s c, said register-wheels are adapted to be rotated. The enga ement of the teeth z with the toothed w eels of the register-wheels v is had when the disks a are rotated. Each of the disks b is provided with a toothed sector (1, and the said sectors d are adapted to be engaged by the toothed wheels e, revolubl mounted on a common shaft f, which she is dis laceablelongitudinall The shaft f is revo uble and provided-with radial-pins which when the shaft f is rotated through the medium of a wing-nut h encounter axial pins p on the wheels e, thus causing the wheels e, and with them the cam-disks b to be returned to the zero position during the period when the crank or handle Z is at-rest.' The disks (1 are suitabl mounted upon a shaft which is rotated through the medium of t e handle Z, as will be evident by reference to the drawings. The reference character M denotes a spring-pawl which is adapted to engage with the wheels c, so as to prevent them from moving after the sectors 11 have passed out of engagement with the said wheels 6. The spring-power of the pawl u is readily overcome when the wheels 0 are rotated to return the disks bto Zero position.

In Fig. 3 a construction is set up by which the spring-pawls u are dispensed with, and in this connection it will be stated that in lieu of providing the cam-disks b with a toothed sector they are each provided, with a circular rack (1 so that on the rotation of the handle 1 the zeroposition wheels 6 remain constantly in engagement with the teeth of the circular rack (1 and it will be evident that when the parts of the machine are at rest the wheels 6 will not be accidentally dis placed, as the teeth of the said wheels are in engagement with the teeth of the circular rack (1 Provision should be made to enable the projections p of the wheels e to pass by the pins g on the shaft f 8 when the construction shown in Fig. 3 is employed, and in this connection it will be stated that any known means can be used for such purpose. For example, the sliaftf is displaceable longitudinally, so that during the rotation of the wheels e in one direction the pins will not engage the pins g; but when it is necessary to move the disks 1) back to zero position the shaft f is so displaced as to cause the ins -9 to en gage the projections p so that w en the shaft f is rotated the wheels 6 will also be.

The axial longitudinal displacement of a shaft f or f 3 is erformed by and- In this connection it wi be stated that the operator grasps the thumbmotch h, secured on either of the shafts f or f and, according to the position of the shaft, moves the same to the right or left, as the case may be, provision for each movement being had owin to the length of either of the shafts f or f ee, by Way of example, shaft f Fig. 1.)

In order to prevent the handle 0 of the camdisks b encountering the toothed wheels a when the handle I is rotated, the toothed sectors or circular racks are not laced in the same lane as the handle 0 T 's can be accomp ished by securing the sectors or racks to the side of the disks 6 or the disks 6 can be constructed in any suitable manner so as to obtain such purpose.

The constructions hitherto described pror vide that the auxiliary toothed wheels, so long as no. especial mechanism for throwing them out of action is provided, must. on the adjustment of the cam-disks and the rotation of the disks a by means. of a handle travel with them. Fi s. 4 to 12 show forms. of constructions whic render the mechanism for throwing the toothed wheels out of action unnecessary and also requires no separate transmission mechanism between the Wheels and shaft such as the arrangements previously described require. The foregoing ob jects are rendered possible owing to the fact that the cam-disk when adjusted even to its greatest adjustment is not displaced the extent of a complete revolution, but only ina comparatively small arc. Therefore when it is required to be returned; to the zero position the return movement will-correspond to the extent of the movement when adjustin Therefore it suffices that if a revoluble sha provided with separate shifting teeth 9 Fi s. 4 and 5, and each camdisk b be provi ed with a tooth-likeprojection (1 by turnin the shaft f 4 by means of the Wing-nut h all 0 the cam-disks b will be moved out of the position indicated-by m in Fig. 5 and shifted to the position indicated by 'y. Instead of employing the separate teeth 9* a handle Z independent y of the shaft f The further advantage is also combined with this construction that by rotation of the zero-position shaft f 4 the shifting teeth gffas shown in Fig. 6, may be turned into a position in which the handles 0 of the cam-disks b find sufficient room to. move past the shaft f so that it is not necessary to place the teeth 9 in other planes than the handles 0 In order to increase the angle formed by the lines a; and y', or rather the respective arc, the toothed projections 0? may also be placed laterally on the cam-disk near their axis of rotation and the shifting tooth g suitably prolonged, as shown in Fig. 7 A. further means for enlarging the angle is the use of several peripheral rojections d d on the disk 12 and a lura ty of shifting teeth g g. on the shaft Fi 8. If, for instance, the

combined action 0 the shifting teeth 9 with the projection d ceases, the action of the arm 9 on the projection d commences, so that the angle of rotation is doubled. The same arrangement may be repeated many times, only it is necessary if the handles 0 andthe arms g g, &c., lie in the same plane, which is very desirable for the sake of saving space, that these arms shall only inclose the shaft f so far thatwhen moved to inoperative position a clearance-space is formed throu h which the handles 0 may move. past the shaft f Fig. 9. In Fig. 16 a portion'ofthe periphery of the disk I)" is provided with peripheral teeth (1", adapted to be engaged by a mutilated sprocket-wheel g", carried on the shaft f The construction of the wheel 9 is such that when said wheel 9 is moved to inoperative position a clearance-space will be formed for the handle a. on the disks 6-". The arr ement shown in Figs. 4, 4t, and 5 may also modified in such a way that. a larger angle of rotation is obtained. If the axis. of rotation f *be placed in the interior of the cylinder described by the circular track of the projections (Z as indicated as. an example in Figs. 11 and 12, the circular courses 1 of the shifting arm 9 and the similarly-directedcurvature of the projection (1 extend in a similar way, so that a combined action I overa longercourse is possible. Inmowing in, the direction indicated by the arrow, Ei 12, the arm, g? may carry the projection: d with it from the position :0 intothe position 'y, and then in the position of notation shown the handle 0 may still pass under the arm g on the rotation, of the adjusting-disks. To prevent the operation of the camrdisksif the same have not been returned to zero position after a preceding operation and also to compel the 0 erator to adopt zero position for the camisks, a means is provided to prevent the operation of the cam-disks after being operated if they have not been returned to zero position. Said means consists of a air of notched disks 1 and 1", the disk 7 eing secured to the shaft w, which carries the cam-disks, and the said disk 1" being secured to the shaft f. The two-armed lever 8, having each of its arms terminating in a hook, is adapted to engage in the notch t of the disk 1 and in the notch t of the disk 9*. The lever s rocks in such a way that one of its hooked ends must always lie in one of the notches t or t, while the other hooked end of the lever s is forced out of the notch of its respective disk by the inclined edges of the notch. Therefore if the shaft f is rotated after the disks have been adjusted one hooked end of the lever s will engage in the notch t, and consequently arrest any further movement of the shaft to unless the said hooked end is moved out of the notch t. This action is caused by rotating the shaft f, which will cause the lever 8 to rock and have the other hooked end thereof engage in the notch t and move that hooked end of the lever which is in the notch if out thereof.

The construction illustrated in Fig. 13 is not intended to prevent the o erator of the machine from rotating the cran Z repeatedly in a continuous manner; but it is intended to the curved disk by means of the shaft f has been com letedthat is to say, the shaft w can only eturned when the shaft f is in its normal position. The recesses t and t and the two-armed ivot-lever s are provided for this purpose, w 'ch latter always rests in one of the two recesses.

Another form of locking mechanism to obtain the objects set forth in the preceding paragraph is disclosed in Fi s. 14-. to 17. In this connection the disks are provided with a radially-extending projection d or an axially-extending projection d. These rojections are moved'in the path of the hoo ed levers g, which are mounted on a common shaft f and which are forced through the action of a spring toward the path of the proj ections d (1 The levers g are prevented from lying in the path of the projections d d through the action of a pawl 12,, engagingover an arm is, connected with the shaft f thus preventing the shaft f from turning through the action of a spring bearing against the pawl g. If the zero position of the disks 1) is to be brought about when adding mechanism has been operated, the arm k is released by means of a hand-lever m, and which causes the lever g to be moved in the path of the projection d or (Z and thereby hold fast the disks b if the handle Z is turned in the direction indicated by the arrow, and on the further rotation will be turned back into zero position. The release of the lever 9 after the reestablishment of the zero position is caused throu h the medium of a lift-cam surface i on the isk q, which is arranged on the crank-shaft 0, said cam-surface pushing a lever is, connected with the shaft f in such a way that the lever g releases the projection d or d and frees the arm 7c, so that the latter can be caught by the pawl n. The construction is such that the release of the projection d or d takes place exactly; at the moment when the camdisks reach t eir zero position. This is necessary, on the one hand, to obtain the exactness of the zero osition and, on the other hand, of course, if t c release was too late the projection d or d of the disks 1) would be firmly hooked by the lever 9. Fig. 17 shows an arrangement which removes this difficulty. Here the hooks of the levers 9 are springmounted in such a way that the s rings overcome the resistance which the dis s b 0 pose to their rotation; buton the handle Z ein further turned no further ossibility of displacement exists for the dis is b, as the hooks of the levers yield and slip off the d or d, and this releases them.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A calculating-machine comprising rotatable disks having displaceable teeth, camdisks for displacing the teeth, and a shaft bearing means for simultaneously returning the cam-disks to zero position.

2. A calculating-machine comprising rotatable disks having displaceable teeth, camdisks for displacing the teeth, a shaft hearing means for simultaneously returning the camdisks to zero position, and means for preventing the operation of the handle before the cam-disks have been returned completely to position and to maintain the cam-disks only 1n zero position when the handle is in its normal position.

3. A calculating-machine comprising rotatable disks havin adjustable teeth, shiftable cam-disks for a justing said teeth, and a shaft bearing means engaging the said disks for returning them to zero osition, thereb returning the teeth to normsfi position.

4. A calculating-machine comprising rotatable disks having adjustable teeth, shlftable cam-disks for adjusting said teeth, a shaft bearing means engaging the said disks for returning them to zero position, thereby returning the teeth to normal position, and means for preventing the operation of the handle before the cam-disks have been returned completely to zero position andto maintain the cam-disks only in zero position when the handle is in its normal position.

5. A calculating-machine comprising regprojection ITO ister-wheels, rotatable disks provided with adjustable teeth adapted toengage the said register-wheels for rotating them, shiftable disks adapted to adjust the said teeth, and a shaft bearing meansfor simultaneously returning said disks to zero position.

6: A calculating-machine comprising register-wheels, rotatable disks provided with adjustable teeth adapted to engage the said register-Wheels for rotating the shiftable disks adapted to adjust the said teeth, a shaft bearing means for simultaneously returning said disks to zero position, a handle for operating said='shaft and means for preventing the operation of the handle before the 15 cam-disks have been returned completely to zero position and to maintain the cam-disks only in zero position when the handle is in its normal position.

In testimony whereof I have hereunto set 20 my hand in presence of two'subsoribing WitF nesses.

FRANZ TRINKS.

Witnesses:

JULIUs SECKEL,

WILHELM ZEHRKE 

